[HUD] Drawing a Rotated Mask Region

/**
 * Helper function to facilitate drawing rotated mask regions.
 * This mask region is drawn from the top left, and it will be rotated about its center.
 * X, Y - Top Left coordinates
 * XL, YL - Width and Height of the Mask region
 * Yaw - Rotation to apply to the mask region
 *
 * NOTE: Remember to call H.Canvas.PopMaskRegion() when you're done!
 */
function PushRotatedMaskRegion(HUD H, float X, float Y, float XL, float YL, float Yaw) 
{
    local Vector CenterPos;
    local Rotator RegionRotation;
 
    CenterPos.X = X + (XL * 0.5);
    CenterPos.Y = Y + (YL * 0.5);
 
    RegionRotation.Yaw = Yaw;
 
    H.Canvas.PushTranslationMatrix(CenterPos);
    H.Canvas.PushRotationMatrix(RegionRotation);
    H.Canvas.PushTranslationMatrix(CenterPos * -1);
 
    H.Canvas.PushMaskRegion(X, Y, XL, YL);
 
    H.Canvas.PopTransform();
    H.Canvas.PopTransform();
    H.Canvas.PopTransform();
}